Tool to fish out drills



(No Model.)

0. H. TAYLOR. TOOL T0 FISH OUT DRILLS 6m, PROM ARTESIAN WELLS.

No. 488,909. Patented Dec. 27, 1892.

vii Ml WIZWESSE'S [NYE/V203 STATES PATENT OFFICE.

CHARLES IIAVELOCK TAYLOR, OF MONTREAL, CANADA, ASSIGNOR OF ONE HALF TOJOHN W. CARMICHAEL, OF WILMINGTON, NORTH CAROLINA.

TOOL TO FISH OUT DRILLS, 84.0., FROM ARTESIAN WELLS.

SPECIFICATION forming part of Letters Patent No. 488,909, dated December2'7, 1892.

Application filed April 13, 1892.

T at whom it may concern:

Be it known that 1, CHARLES I-IAvELooK TAYLOR, a citizen of Canada,residing at Montreal, in the Province of Quebec and Dominion 5 ofCanada, have invented a certain new and useful Improvement in aFishing-Tool for Catching and Extracting Broken or Detached Drills orDrilling-Tools from Artesian or Oil ells; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the artto which it appertains tomake and use the same.

This invention consists of a tool designed I5 for catching andextracting from Artesian or oil 1wells,broken or detached drills ordrilling too s.

The object of the invention is to provide a tool which can be readilyattached to the drilling rod as in the case of adrill, and to be soprovided at its lower end as to receive the upper end of the detached orlost tool and hold the same therein by certain novel construction as tosuch part.

The construction of the tool briefly stated is that of an open ended orsocketed metal piece adapted to be lowered into the drill hole or welland receive therein the end of the detached tool, the said socket beingprovided with ratchet sections normally held in an upwardly flaredportion of the socket and adapted to be released by the entrance of thedetached tool and wedge themselves between the said tool and theinclined walls of the socket, thus firmly engaging the tool and cans ingthe hold to tighten by the downward pull when the said detached tool isbeing raised.

The invention also consists in certain other novel features in theconstruction and arrangement of parts, all, as hereinafter fully setforth and pointed out in the claim.

In the accompanying drawings in which the invention is fullyillustrated, Figure 1, is a view in elevation of the extracting toolwith the catching end broken away and showing a transverse verticalsection through the same. Fig. 2, is a horizontal transverse sectionalView taken on the line 0:, a, of Fig. 1. Fig. 3, is a view in section ofa portion of a catching end of the tool, showing the operation of itsinterior parts in the act of securing a detached Serial No- 429,076. (Nomodel.)

tool. Fig. 4, is a perspective view of one of the ratchet sectionsdetached.

Referring to the drawings by letter,A designates the catching tool whichmay be of the form of a drill tool as to general appearance or of anyusual or preferred form, the same being provided with a screw threadedportion B, at its upper end for attaching it tothe drill rod as in thecase of an ordinary drill. The lower portion of the device is preferablyin cylindrical form and provided with a socket C, which is in generalform similar to that of the upper end of a drill but of asize sufficientto readily admit the entrance therein of the detached tool.

To facilitate the entrance of the detached or broken tool into thesocket O, the bottom edge of the catching tool is beveled as shown at Dthus relieving it of any obstructing edge and forming a guide for thebroken or detached tool.

\Vithin the socket C an annular tapering or inclined portion is formedby cutting into the sides of the socket so as to cause the walls at thispoint to be upwardly flared. Within this tapering portion E of thesocket are held by means of the spring ring F, the curved sections Gwhich are inclined on their rear faces to conform to the taper of thesocket, causing their front faces which are ratched or screw threaded tobe vertical. These ratchet sections G are preferably four in number andWhen placed within the socket in their proper position extend around thewalls of the same and fill the flared out portions E making the walls ofthe socket vertical with the exception of the ratchet face of saidsections.

At diametrically opposite points in the tapering portion of the socketare provided lugs or projections H which extend between the curvedratchet sections G and serve to keep said sections within theirrespective places, sufficient play being allowed however, in order thatthe ends of the sections may escape the said projection when beingforced out by the inclined or tapering wall of the socket when thesections are in their dropped position as shown in Fig. 3. It will beobserved that the sections G have their ratchet faces formed by beingscrew threaded. This permits the detaching of the extracted tool fromthe socket by turning the same and in this operation the projection Hprevent the sections from turning.

The function of the ring F, as will readily be seen, is to normally holdthe ratched sections up against the shoulder I, by being inserted withinthe socket so as to press against the faces of the said sections.

From the view shown in Fig. 3, the operation of the several parts of thedevice will be clearly seen. The detached tool being readily guided intothe socket O, pushes up spring ring F, which taking the pressure off ofratchet sections causes them by their own weight to drop, and to beforced outward by the inclined face of the socket against the detachedtool and to closely hug the same. The tendency of the ratchet sectionsto increase their hold on the detached tool When the weight of said toolis put upon them or any degree of pull required to raise the drill fromthe Well, will be clearly apparent.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is:

In a tool of the character described, the socket formed in the lower endthereof having an-interior tapering recess, tapering ratchet sectionsadapted to fit the said tapering recess and a spring ring adapted toimpinge against the ratchet faces of the tapering sections and tonormally hold them in the upper portion of the tapering recess, saidspring ring being dislodged by the entrance of the detached tool andforced up substantially as described, thereby releasing the taperingrat-chet sections which descend and engage the detached tool as setforth. 7

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES HAVELOCK TAYLOR.

Witnesses:

W. R. (JOOHRANE, D. G. MAXWELL.

